The enormous free festival takes place over the weekend of 8th/9th September, bringing together some of the world's best street performers, musicians, dancers, and artists. There'll be an illuminated night carnival too, as well as river races and a spectacular fireworks display Sunday evening on the Thames.
Events take place at various locations along the banks of the Thames, from Tower Bridge all the way to Westminster Bridge.
There's so much going on that it'll be impossible to make it along to everything, so the best advice is to head over to the festival's website and spend some time exploring the official programme of events to see what takes your fancy.
Mayor Boris Johnson is encouraging everyone to "head down to the South Bank and enjoy this truly amazing event showcasing the vibrancy, diversity and rich culture of our capital." He may not be particularly good when it comes to using a zip-wire, but he sure knows how to put on a dazzling festival.
After such a busy and exciting summer, come Monday morning on 10th September, London may suddenly feel like a very quiet place. But fear not, readers, for we here at WeekendNotes will endeavour to keep you informed of more fun ideas for things to do in this very special city.